<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .box {
            margin: 0 auto;
            width: 1226px;
            height: 614px;
        }
        .left{
            float: left;
            width: 234px;
            height: 614px;
            background-color: #800080;
            margin: 0 14px 0 0;
        }
        .right{
            float: right;
            width: 978px;
            height: 614px;
        }
        .right li {
            /*去掉列表符号*/
            list-style: none;
            width: 234px;
            height: 300px;
            background-color: #87ceeb;
            float: left;
            margin-right: 14px;
            margin-bottom: 14px;
        }
        li:nth-child(4n) {
            margin-right: 0;
        }
        /*如果父级宽度不够，子级会自动换行*/

    </style>

</head>
<body>
<div class="box">
    <div class="left"></div>
    <div class="right">
        <ul>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
            <li></li>
        </ul>
    </div>
</div>
</body>
</html>